Abstract: Nonlinear interaction can make at ranslation from the initial circular and elliptical vortices with smooth contours to complex flow patterns in which variours scales vortices and eddies with unsmooth contours coexist. The perimeters of the vortices and eddies are characterized as fractals, the fractal dimensions are close to that obtained by Lovejoy based on the geometry of satellite and radar determined cloud and rain areas in the tropical regions.